[INFO] cloning repository https://github.com/kse201/mini_rdbms [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kse201/mini_rdbms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkse201%2Fmini_rdbms", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkse201%2Fmini_rdbms'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] aef5fdb627821b71e923f3c151254fba5e45a426 [INFO] checking kse201/mini_rdbms against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkse201%2Fmini_rdbms" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/kse201/mini_rdbms on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/kse201/mini_rdbms [INFO] finished tweaking git repo https://github.com/kse201/mini_rdbms [INFO] tweaked toml for git repo https://github.com/kse201/mini_rdbms written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/kse201/mini_rdbms already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded thiserror v1.0.24 [INFO] [stderr] Downloaded ppv-lite86 v0.2.10 [INFO] [stderr] Downloaded getrandom v0.2.2 [INFO] [stderr] Downloaded rand_hc v0.3.0 [INFO] [stderr] Downloaded proc-macro2 v1.0.26 [INFO] [stderr] Downloaded syn v1.0.71 [INFO] [stderr] Downloaded rand v0.8.3 [INFO] [stderr] Downloaded quote v1.0.9 [INFO] [stderr] Downloaded thiserror-impl v1.0.24 [INFO] [stderr] Downloaded rand_chacha v0.3.0 [INFO] [stderr] Downloaded rand_core v0.6.2 [INFO] [stderr] Downloaded redox_syscall v0.2.6 [INFO] [stderr] Downloaded tempfile v3.2.0 [INFO] [stderr] Downloaded unicode-xid v0.2.1 [INFO] [stderr] Downloaded libc v0.2.94 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a1cc95349b77959b6ce52ed5fd74634f2f672d503e47217a8185cf2397df9bc1 [INFO] running `Command { std: "docker" "start" "-a" "a1cc95349b77959b6ce52ed5fd74634f2f672d503e47217a8185cf2397df9bc1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a1cc95349b77959b6ce52ed5fd74634f2f672d503e47217a8185cf2397df9bc1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a1cc95349b77959b6ce52ed5fd74634f2f672d503e47217a8185cf2397df9bc1", kill_on_drop: false }` [INFO] [stdout] a1cc95349b77959b6ce52ed5fd74634f2f672d503e47217a8185cf2397df9bc1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 24e0d4eea31173408c6bfe2fbac27a13087aa87a0384cbee948937f3c1f21dfe [INFO] running `Command { std: "docker" "start" "-a" "24e0d4eea31173408c6bfe2fbac27a13087aa87a0384cbee948937f3c1f21dfe", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.94 [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.71 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Checking remove_dir_all v0.5.3 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking rand_core v0.6.2 [INFO] [stderr] Checking rand_chacha v0.3.0 [INFO] [stderr] Checking rand v0.8.3 [INFO] [stderr] Checking tempfile v3.2.0 [INFO] [stderr] Compiling thiserror-impl v1.0.24 [INFO] [stderr] Checking thiserror v1.0.24 [INFO] [stderr] Checking mini_rdms v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variant `NoFreeBuffer` is never constructed [INFO] [stdout] --> src/buffer.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 12 | enum Error { [INFO] [stdout] | ----- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 17 | NoFreeBuffer, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `usage_count` and `buffer` are never read [INFO] [stdout] --> src/buffer.rs:39:5 [INFO] [stdout] | [INFO] [stdout] 38 | pub struct Frame { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 39 | usage_count: u64, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 40 | buffer: Rc, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Frame` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `next_victim_id` is never read [INFO] [stdout] --> src/buffer.rs:45:5 [INFO] [stdout] | [INFO] [stdout] 43 | pub struct BufferPool { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] 44 | buffers: Vec, [INFO] [stdout] 45 | next_victim_id: BufferId, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `size`, `evict`, and `increment_id` are never used [INFO] [stdout] --> src/buffer.rs:59:8 [INFO] [stdout] | [INFO] [stdout] 48 | impl BufferPool { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 59 | fn size(&self) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 63 | fn evict(&mut self) -> Option { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 90 | fn increment_id(&self, buffer_id: BufferId) -> BufferId { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `disk`, `pool`, and `page_table` are never read [INFO] [stdout] --> src/buffer.rs:112:5 [INFO] [stdout] | [INFO] [stdout] 111 | pub struct BufferPoolManager { [INFO] [stdout] | ----------------- fields in this struct [INFO] [stdout] 112 | disk: DiskManager, [INFO] [stdout] | ^^^^ [INFO] [stdout] 113 | pool: BufferPool, [INFO] [stdout] | ^^^^ [INFO] [stdout] 114 | page_table: HashMap, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `fetch_page` and `create_page` are never used [INFO] [stdout] --> src/buffer.rs:126:8 [INFO] [stdout] | [INFO] [stdout] 117 | impl BufferPoolManager { [INFO] [stdout] | ---------------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 126 | fn fetch_page(&mut self, page_id: PageId) -> Result, Error> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 150 | fn create_page(&mut self) -> Result, Error> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.21s [INFO] running `Command { std: "docker" "inspect" "24e0d4eea31173408c6bfe2fbac27a13087aa87a0384cbee948937f3c1f21dfe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "24e0d4eea31173408c6bfe2fbac27a13087aa87a0384cbee948937f3c1f21dfe", kill_on_drop: false }` [INFO] [stdout] 24e0d4eea31173408c6bfe2fbac27a13087aa87a0384cbee948937f3c1f21dfe